Fuel pump override system

ABSTRACT

The present invention includes a liquid filling, pressurization and release apparatus and method for filling, pressurizing and releasing liquids into a system. One embodiment of the present invention includes a liquid pressurization and release apparatus including a housing, a discharge aperture positioned on one end of the housing, a slidable disk disposed within the housing to form a chamber suitable to fill, pressurize and release a liquid, a compression mechanism attached to the slidable disk and a tensioning mechanism coupled to the slidable disk to pressurize and maintain pressure in the chamber.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to U.S. Provisional PatentApplications, Ser. No. 60/510,335; entitled “Fuel Pump Override System”filed Oct. 10, 2003.

TECHNICAL FIELD OF THE INVENTION

The present invention relates generally to the field of vehicle fuelsystems and, more particularly, to a vehicle fuel pump override system.

BACKGROUND OF THE INVENTION

There are times when a vehicle's fuel system fails, such as a failure ofa fuel pump, failure of the fuel pump relay, clogged fuel filter, badfuel, etc. In these circumstances, there is very little the operator cando but to have the vehicle towed to a maintenance facility. Moreover,once the vehicle is at the maintenance facility, the vehicle must bemanually pushed in and out of the maintenance bay, which usually takesthree or more mechanics away from their assigned duties. Alternatively,the vehicle can be started and driven by pouring fuel directly into theengine, which also takes at least two mechanics and is obviously moredangerous. In the case where the fuel is thought to be bad, the fueltank must be drained and refilled to determine whether that was thecause of the problem and to fix it. Accordingly, there is a need for afuel pump override system that is easy to use, is inexpensive andenables a vehicle having a failed fuel system to be run safely andtemporarily.

SUMMARY OF THE INVENTION

The present invention provides a fuel pump override system that is easyto use, is inexpensive and enables a vehicle having a failed fuel systemto be run safely and temporarily. More specifically, the presentinvention is used to supply the required fuel pressure and fuel to allowa vehicle to run temporarily for movement or transport that otherwisewould have to be towed, pushed or otherwise moved due to a bad fueldelivery system, such as a failure of a fuel pump, failure of the fuelpump relay, clogged fuel filter, bad fuel, etc.

The present invention provides a liquid pressurization and releaseapparatus having a housing with a discharge aperture positioned at oneend of the housing and a slidable disk disposed within the housing toform a chamber suitable to fill, pressurize and release a liquid, acompression mechanism attached to the slidable disk and a tensioningmechanism coupled to the slidable disk to pressurize and maintainpressure in the chamber.

One embodiment of the present invention provides an apparatus forpressurization and release of a liquid including a housing having afirst end having a notched aperture and a second end having a dischargeaperture, a slidable disk disposed within the housing to form a fluiddisplacement chamber, a spring disposed in the housing between theslidable disk and the first end of the housing, such that compressingthe spring draws into the fluid displacement chamber and decompressingthe spring pressurizes the liquid in the fluid displacement chamber anda rod attached to the slidable disk and engaging the notched aperture,to compress the spring and decompress the spring.

The present invention also provides a method of pressurizing andreleasing a liquid into a system including the steps of providing apressurization and release apparatus having an aperture, attaching theaperture of the pressurization and release apparatus to a system andreleasing the pressurized liquid into the system. The pressurization andrelease apparatus may include a housing having an aperture, a slidabledisk disposed within the housing to form a chamber suitable to fill,pressurize and release a liquid, a compression mechanism attached to theslidable disk and a tensioning mechanism coupled to the slidable disk.

The present invention is described in detail below with reference to theaccompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

For a more complete understanding of the features and advantages of thepresent invention, reference is now made to the detailed description ofthe invention along with the accompanying figures in which correspondingnumerals in the different figures refer to corresponding parts and inwhich:

FIG. 1 depicts a perspective view of one embodiment of the presentinvention;

FIG. 2 depicts an exposed perspective view of the present invention ofFIG. 1;

FIG. 3 depicts a block diagram of the present invention connected to afuel system of a vehicle;

FIG. 4 depicts an exposed side view of another embodiment of the presentinvention;

FIG. 5 depicts an exposed side view of another embodiment of the presentinvention;

FIG. 6 depicts an exposed side view of another embodiment of the presentinvention;

FIG. 7 depicts a flow chart of how the present invention is used; and

FIGS. 8A, 8B and 8C depict perspective views of another embodiment ofthe present invention.

DETAILED DESCRIPTION

While the production and application of various embodiments of thepresent invention are discussed in detail below in relation to a fuelpump override system, it should be appreciated that the presentinvention provides many applicable inventive concepts that may beembodied in a wide variety of specific contexts. The specificembodiments discussed herein are merely illustrative of specific ways tomake and use the invention and do not delimit the scope of theinvention.

The present invention provides a fuel pump override system that is easyto use, is inexpensive and enables a vehicle having a failed fuel systemto be run safely and temporarily. More specifically, the presentinvention is used to supply the required fuel pressure and fuel to allowa vehicle to run temporarily for movement or transport that otherwisewould have to be towed, pushed or otherwise moved due to a bad fueldelivery system, such as a failure of a fuel pump, failure of the fuelpump relay, clogged fuel filter, bad fuel, etc.

For example, FIG. 1 depicts a perspective view of one embodiment of thepresent invention. The fuel pump override system 100 includes threebasic functional components: a pressure control section 102, a fuelcompression section 104 and a fuel connection/valve section 104. Anexposed perspective view of the fuel pump override system 100 is shownin FIG. 2. The fuel pump override system 100 includes a cylinder 110, anopen/close valve 112 connected to a first end 114 of the cylinder 110, afuel connector 116 connected to the open/close valve 112, a fuel bladder118 disposed within the cylinder 110 having one end 120 connected to theopen/close valve 112 and a compression disc 122 disposed within thecylinder 110 and connected to the other end 124 of the fuel bladder 118.The fuel pump override system 100 also includes a spring 126 disposedwithin the cylinder 110 between the compression disc 122 and a secondend 128 of the cylinder 110, a spring tension adjuster 130 for varyingthe tension of the spring 126, a retract rod 132 (threaded, notched orwith holes) connected to the compression disc 122 and extending outthrough the second end 128 of the cylinder 110, and a torque control 134moveably connected to the retract rod 132 outside of the cylinder 110.The fuel pump override system 100 may also include one or more handles,legs or an anchor 136 connected to the exterior of the cylinder 110 toallow the device 100 to rest on the ground or be secured to a vehicle.In one example, the cylinder 110 is three inches in diameter, ten incheslong and holds about one quart of fuel. Other sizes can be used.

Now referring to FIG. 3, a block diagram of the present invention 312connected to a fuel system 300 of a vehicle is shown. The vehicle fuelsystem 300 includes a fuel tank 302 connected to a fuel pump 304 viafuel line 306 and a fuel distribution system 308 connected to the fuelpump 304 via fuel line 310. Whenever the fuel delivery system 300 failsdue to a failure of a fuel pump 304, failure of the fuel pump relay,clogged fuel filter, broken fuel line 306, suspected bad fuel, or othertype of fuel supply/flow related failures, the fuel pump override device312 (see 100 in FIG. 1) is connected to the fuel pressure test valve orshredder valve 316 via temporary fuel line 314. In the case where thefuel is thought to be bad, the fuel pump is also disabled. The fuel pumpoverride device 312 delivers fuel at the appropriate pressure so thatthe vehicle can be started and run for a certain period of time.

Referring now to FIG. 4, an exposed side view of another embodiment ofthe present invention is shown. The fuel pump override system 400includes a cylinder 110, an open/close valve 112 connected to a firstend 114 of the cylinder 110, a fuel connector 116 connected to theopen/close valve 112, a fuel pressure regulator 408 connected to theopen/close valve 112, a fuel compression chamber 402 disposed within thecylinder 110 between the first end 114 of the cylinder 110 and a piston404. The piston 404 includes one or more o-rings 406 at the interfacewith the cylinder 110 to prevent leakage of fuel from the fuelcompression chamber 402. A spring 126 is disposed within the cylinder110 between the piston 404 and a second end 128 of the cylinder 110. Thefuel pump override system 400 also includes a spring tension adjuster130 for varying the tension of the spring 126, a retract rod 132(threaded, notched or with holes) connected to the piston 404 andextending out through the second end 128 of the cylinder 110, a torquecontrol 134 moveably connected to the retract rod 132 outside of thecylinder 110. The pressure regulator 408 typically will reduce the 60psi in the cylinder 110 to whatever pressure is recommended for thevehicle, e.g., 20 psi. The vehicle manufacturers provide recommendedfuel pressure ranges for each vehicle. Accordingly, the presentinvention can be used safely with any make and model of vehicle.

Now referring to FIG. 5, an exposed side view of another embodiment ofthe present invention is shown. The fuel pump override system 500includes a cylinder 110, an open/close valve 112 connected to a firstend 114 of the cylinder 110, a fuel connector 116 connected to theopen/close valve 112, a fuel pressure regulator 408 connected to theopen/close valve 112, a fuel compression chamber 402 disposed within thecylinder 110 between the first end 114 of the cylinder 110 and a piston404. The piston 404 includes one or more o-rings 406 at the interfacewith the cylinder 110 to prevent leakage of fuel from the fuelcompression chamber 402. The fuel pump override system 500 also includesa spring 126 disposed within the cylinder 110 between the piston 404 anda second end 128 of the cylinder 110, a spring tension adjuster 130 forvarying the tension of the spring 126, a retract rod 132 (threaded,notched or with holes) connected to the piston 404 and extending outthrough the second end 128 of the cylinder 110, a torque control trigger502 moveably connected to the retract rod 132 outside of the cylinder110.

Referring now to FIG. 6, an exposed side view of another embodiment ofthe present invention is shown. The fuel pump override system 600includes a cylinder 110, an open/close valve 112 connected to a firstend 114 of the cylinder 110, a fuel connector 116 connected to theopen/close valve 112, a fuel pressure regulator 408 connected to theopen/close valve 112, a fuel compression chamber 402 disposed within thecylinder 110 between the first end 114 of the cylinder 110 and a piston404. The piston 404 includes one or more o-rings 406 at the interfacewith the cylinder 110 to prevent leakage of fuel from the fuelcompression chamber 402. The fuel pump override system 600 also includesa spring 126 disposed within the cylinder 110 between the piston 404 anda second end 128 of the cylinder 110, a spring tension adjuster 130 forvarying the tension of the spring 126, a retract rod 132 (threaded,notched or with holes) connected to the piston 404 and extending outthrough the second end 128 of the cylinder 110, a torque control handle602 moveably connected to the retract rod 132 outside of the cylinder110.

Now referring to FIG. 7, a flow chart 700 of how the present inventionis used. Fuel is first loaded into the fuel override device 100, 312,400, 500 or 600 by attaching a siphon hose to the connecter 116 of thefuel override device 100, 312, 400, 500 or 600 and placing the other endof the siphon hose in a container of fuel. The open/close valve 112 ismoved to the open position and the retract rod 132 is retracted tosiphon fuel into the fuel override device 100, 312, 400, 500 or 600until the bladder 118 or fuel compression area 402 are completelyfilled. The open/close valve 112 is then closed, the siphon hose isremoved from the fuel container and detached from the fuel overridedevice 100, 312, 400, 500 or 600. A fuel distribution line or temporaryfuel line is attached to the connector 116 and the device 100, 312, 400,500 or 600 is now ready to use.

In order to use the fuel override device 100, 312, 400, 500 or 600, airis bled from the temporary fuel line 314 in block 702 and the temporaryfuel line 314 is connected to the shredder valve 316 of the fuel pump304 in block 704. All of the retracted pressure on the fuel overridedevice 100, 312, 400, 500 or 600 is released in block 706 and theopen/close valve 112 is opened in block 708. The vehicle can now bestarted in block 710 and driven to a maintenance facility or into/out ofa maintenance bay. Typically, the device 100, 312, 400, 500 or 600 willbe secured to the vehicle or set in a position using the handle, legs oranchor 136 so that the fuel connection will not be broken or stressed.

Referring now to FIGS. 8A, 8B and 8C, perspective views of anotherembodiment of the present invention are shown. The fuel pump overridesystem 100 includes a cylinder 110, a fuel connector 116 connected to afirst end 114 of the cylinder 110, a piston 804 having one or moreo-rings 806 positioned around the circumference of the piston 804disposed within the cylinder 110, a spring 126 disposed within thecylinder 110 between the piston 804 and a second end 128 of the cylinder110, a spring tension adjuster 130 for varying the tension of the spring126, a retract rod 132 (threaded, notched or with holes) connected tothe piston 804 and extending out through the second end 128 of thecylinder 110, a gear box 834 engaging the retract rod 132 and attachedto the exterior of the cylinder 110. FIG. 8 a depicts a handle or leg136 connected to the exterior of the cylinder 110 to allow the device100 to rest on the ground, held or be secured to a vehicle.Alternatively, other apparatus may be attached, e.g., legs, magneticareas or an anchor not shown. The fuel pump override system 100 may alsohave a house 808 attached to the fuel connector 116. In one example, thecylinder 110 is three and a quarter inches in diameter, twelve incheslong and holds over about one quart of fuel. Other embodiments may usedifferent diameters and the lengths to adjust the capacity of theinvention to other applications or needed.

In one embodiment, the gearbox 834 may be used to engage the retractingrod, whereby operating the gearbox 834 in turn operated the retract rod132. The gearbox 834 may use gears (e.g., spur gears, helical gears,bevel gears, worm gears, rack and pinion gears or combinations thereof)of differing size and ratios depending on the needs of the application,e.g., different ratios to allow higher compression springs to be usedand, thus, to produce higher pressures. Additionally, the gearbox 834may be driven manually or through power (e.g., battery powered, poweredby the electrical system of the vehicle) supplied to a motor, which inturn drives the gears of the gearbox 834.

The present invention provides a liquid pressurization and releaseapparatus 100 including a housing 110 with a discharge aperture (notshown) positioned on one end, a slidable disk 106 disposed within thehousing 110, a compression mechanism and a tensioning mechanism. Thehousing 110 may have a discharge aperture (not shown) at one end toallow fluid movement between the housing 110 and the system. Thedischarge aperture (not shown) may have a valve 104 attached to controlthe flow or seal the liquid pressurization and release apparatus 100.The discharge aperture (not shown) may also have different connections104 to allow the connection of the liquid pressurization and releaseapparatus 100 to a variety of systems and positions within the system,e.g., fuel pump, fuel line, fuel rail and the like.

The slidable disk 404 is disposed within the housing 110 and forms achamber 402 suitable to fill, pressurize and release a liquid. Themovement of the slidable disk 404 functions to change the volume of thechamber 402. The slidable disk 404 has one or more rings 406 positionedaround the slidable disk 404 and between the inner walls of the housing110, whereby the chamber 402 is partially sealed. The rings 406 may beo-rings, self lubricating o-rings or other mechanism suitable to createa partial seal between the slidable disk 404 and the housing 110.Alternatively, the slidable disk 404 may be attached to an expandablebladder 118 that is connected to the housing 110. The movement of theslidable disk 404 may cause the movement of the fuel bladder 118 and theformation of a chamber 402 to pressurization and release liquids.

The compression mechanism is attached to the slidable disk 404. Thecompression mechanism allows the movement of the slidable disk 404, thuschanging the volume of the chamber 402. The compression mechanism may bein a variety of forms. The compression mechanism may be a threaded ornotched rod 132 attached to the slidable disk 404 and extending througha threaded aperture (not shown) in the housing 110. The rod 132 may havea handle (not shown) attached to facilitate the rotation of the rod 132and thereby move the slidable disk 404. The compression mechanism mayalso include a threaded rod 132 attached to the slidable disk 404 andextending through an aperture (not shown) in the housing 110 and inconnection with a gearbox 834. The gearbox 834 may use gears (e.g., spurgears, helical gears, bevel gears, worm gears, rack and pinion gears orcombinations thereof) of differing size and ratios depending on theneeds of the application, e.g., different ratios to allow highercompression springs to be used to produce higher pressures.Additionally, the gearbox 834 may be driven manually or through power(e.g., battery powered or powered by the electrical system of thevehicle) supplied to a motor, which in turn drives the gears of thegearbox 834. The compression mechanism may also use a hydraulicmechanism to move the rod 132 attached to the slidable disk 404.Additionally, the compression mechanism may be a gear system or motorlocated within the housing 110 with a control to activate compression ormovement of the slidable disk 404. The present invention also has atensioning mechanism in contact with the slidable disk 404, wherein thetension created by the tensioning mechanism is used to pressurize andmaintain pressure in the chamber 402.

The tensioning mechanism may be a single spring 126 or more than onesprings 126 configured in a variety of ways. The compression of thetensioning mechanism results in a pressure being exerted on the slidabledisk 404 and in turn on the liquid in the chamber 402. The tensioningmechanism is coupled to the slidable disk 404, in a manner that allowsthe tensioning mechanism to be in contact with the slidable disk 404 orconnected to the slidable disk 404. Although it is not necessary for thetensioning mechanism to be in contact with the slidable disk 404 at alltimes, e.g., when the apparatus 100 is not in operation. In oneembodiment, the tensioning mechanism may be one or more springs 126. Thepressure exerted by the spring 126 results in the liquid being at aspecific pressure, e.g., between about 5 and 100 psi. The spring 126 maybe rated between about 400 and 1600 pounds depending on the particularneeds (e.g., psi) of the specific application. The tensioning mechanismmay also be pneumatic mechanism, a hydraulic mechanism, an electricmechanism, a magnetic mechanism, a mechanical mechanism or combinationsthereof, wherein the tensioning mechanism results in a pressure beingapplied to the liquid in the chamber 402. The pressure resulting fromthe tensioning mechanism may result in a substantially constant pressureproduced by the apparatus 100.

The present invention also provides an apparatus 100 for thepressurization and release of a liquid including a housing 110, aslidable disk 404 a spring and a rod 132 attached. The housing 110 has afirst end 114 that has a threaded aperture (not shown) and a second end128, which has a discharge aperture (not shown) for release of apressurized liquid. The discharge aperture (not shown) may be adapted tofit a valve 104 or fitting to allow connection to a variety of liquidsystems (e.g., methanol, diesel, gasoline, kerosene, water, hydrocarbonand the like) and connect at a variety of locations in the system, e.g.,the fuel rail, fuel pump, fuel line and the like.

The present invention also provides a slidable disk 404 disposed withinthe housing 110. The movement of the slidable disk 404 forms a fluiddisplacement chamber 402 between the second end 128 of the housing 110and the slidable disk 404. In another embodiment, a fuel bladder 118 isconnected to the second end 128 of the housing 110 and the slidable disk404. The movement of the slidable disk 404 expands the fuel bladder 118to form a fluid displacement chamber 402 between the second end 128 ofthe housing 110 and the slidable disk 404. Alternatively, the slidabledisk 404 may be attached to an expandable bladder 118 that is connectedto the housing 110. The movement of the slidable disk 404 may cause themovement of the fuel bladder 118 and the formation of a chamber 402 topressurization and release liquids.

A spring 126 may be disposed within the housing 110 between the slidabledisk 404 and the first end 114 of the housing 110. The compression ofthe spring 126 results in a pressure being exerted on the slidable disk404 and in turn on the liquid in the chamber 402. The spring 126 may bean individual spring or multiple springs in a variety of configurations.The pressure exerted by the spring 126 results in the liquid being at aspecific pressure, e.g., between about 5 and 100 psi. The spring ratedmay be rated between about 400 and 1600 pounds depending on theparticular needs (e.g., psi) of the specific application. Thecompression of the spring 126 moves the slidable disk 404 and drawsfluid into the fluid displacement chamber 402. The decompression of thespring 126 results a pressure being applied to the slidable disk 404 andthe pressurization the liquid in the fluid displacement chamber 402.

The present invention also includes a rod 132 connected to the slidabledisk 404 and engaging the threaded aperture (not shown) located on thefirst end 114 of the housing 110, whereby engaging the notched aperture(not shown) moves the slidable disk 404 and compresses the spring 126and disengaging the notched aperture (not shown) releases the slidabledisk 404 decompresses the spring 126. The contents of the chamber 402are then pressurized as a result of the pressure from the spring 126. Insome embodiments, the rod 132 may have a handle (not shown) attached toaid in the rotation of the rod 132 and in-turn the movement of theslidable disk 404. Alternatively, the notched aperture (not shown) maybe a part of a gearbox 834 attached to the housing 110, which provides amechanical advantage to the movement of the rod and the slidable disk404. The gearbox 834 may use gears (e.g., spur gears, helical gears,bevel gears, worm gears, rack and pinion gears or combinations thereof)of differing size and ratios depending on the needs of the application,e.g., different ratios to allow higher compression springs to be used toproduce higher pressures. Additionally, the gearbox 834 may be drivenmanually or through power (e.g., battery powered or powered by theelectrical system of the vehicle) supplied to a motor, which in turndrives the gears of the gearbox 834. The compression mechanism may alsouse a hydraulic mechanism to move the rod 132 attached to the slidabledisk 404.

The present invention also provides a method of pressurizing andreleasing a liquid into a system. The method includes the steps ofproviding a pressurization and release apparatus 100, attaching thepressurization and release apparatus to a liquid system, and releasingcontents into the system. The pressurization and release apparatusincludes a housing 110 having an aperture 104, a slidable disk 404disposed within the housing 110 to form a chamber 402 suitable to fill,pressurize and release a liquid, a compression mechanism attached to theslidable disk 404, and a tensioning mechanism coupled to the slidabledisk 404 to pressurize and maintain pressure in the chamber 404.

The compression mechanism is attached to the slidable disk 404. Thecompression mechanism allows the movement of the slidable disk 404, thuschanging the volume of the chamber 402. The compression mechanism may bein a variety of forms. The compression mechanism may be a threaded ornotched rod 132 attached to the slidable disk 404 and extending througha threaded or notched aperture (not shown) in the housing 110. The rod132 may have a handle (not shown) attached to facilitate the rotation ofthe rod 132 and thereby move the slidable disk 404. The compressionmechanism may also include a threaded or notched rod 132 attached to theslidable disk 404 and extending through an aperture (not shown) in thehousing 110 and in connection with a gearbox 834. The gearbox 834 mayuse gears (e.g., spur gears, helical gears, bevel gears, worm gears,rack and pinion gears or combinations thereof) of differing size andratios depending on the needs of the application, e.g., different ratiosto allow higher compression springs to be used to produce higherpressures. Additionally, the gearbox 834 may be driven manually orthrough power (e.g., battery powered or powered by the electrical systemof the vehicle) supplied to a motor, which in turn drives the gears ofthe gearbox 834. The compression mechanism may also use a hydraulicmechanism to move the rod 132 attached to the slidable disk 404.Additionally, the compression mechanism may be a gear system or motorlocated within the housing 110 with a control to activate compression ormovement of the slidable disk 404. The present invention also has atensioning mechanism in contact with the slidable disk 404, wherein thetension created by the tensioning mechanism is used to pressurize andmaintain pressure in the chamber 402.

The tensioning mechanism may be a single spring 126 or more than onesprings 126 configured in a variety of ways. The compression of thetensioning mechanism results in a pressure being exerted on the slidabledisk 404 and in turn on the liquid in the chamber 402. The tensioningmechanism is coupled to the slidable disk 404, in a manner that allowsthe tensioning mechanism to be in contact with the slidable disk 404 orconnected to the slidable disk 404. Although it is not necessary for thetensioning mechanism to be in contact with the slidable disk 404 at alltimes, e.g., when the apparatus 100 is not in operation. In oneembodiment, the tensioning mechanism may be one or more springs 126. Thepressure exerted by the spring 126 results in the liquid being at aspecific pressure, e.g., between about 5 and 100 psi. The spring 126 maybe rated between about 400 and 1600 pounds depending on the particularneeds (e.g., psi) of the specific application. In other embodiments, thetensioning mechanism may also be pneumatic mechanism, a hydraulicmechanism, an electric mechanism, a magnetic mechanism, a mechanicalmechanism or combinations thereof, wherein the tensioning mechanismresults in a pressure being applied to the liquid in the chamber 402.The pressure resulting from the tensioning mechanism may result in asubstantially constant pressure produced at the aperture by thepressurization and release apparatus 100.

The method of the present invention may further include the step offilling the pressurization and release apparatus 100 that includesattaching the pressurization and release apparatus 100 to a supply ofliquid and compressing the compression mechanism whereby drawing theliquid into the chamber 402. The step of pressurizing the liquid withinthe pressurization and release apparatus 100 includes releasing thecompression mechanism allowing the tensioning mechanism to applypressure to the liquid contained within the chamber 404 of thepressurization and release apparatus 100.

The pressurization and release apparatus 100 may be attached to thesystem using the aperture (not shown) of the pressurization and releaseapparatus 100. The aperture (not shown) may include a valve 104 or avariety of fittings to allow the attachment of the pressurization andrelease apparatus 100 at a variety of points throughout the system,e.g., the fuel rail, fuel pump, fuel line and the like. Thepressurization and release apparatus 100 may also be used to withdrawliquid from the system and then supply the pressurized liquid to anotherpart of the system, e.g., attach the pressurization and releaseapparatus 100 to the fuel system, remove a portion of the fuel from afuel tank, pressurize the fuel and then release the fuel to the fuelsystem. Additionally the pressurization and release apparatus 100 may beconfigured to allow connection to a variety of systems (e.g., methanol,diesel, gasoline, kerosene, water, hydrocarbon and the like). Thepressurized liquid is then releases into the system, allowing the systemto obtain and use the liquid.

While the preceding description shows and describes one or moreembodiments, it will be understood by those skilled in the art thatvarious changes in form and entail may be made therein without departingfrom the spirit and scope of the present disclosure. Therefore, theclaims should be interpreted in a broad manner, consistent with thepresent disclosure.

1. A liquid pressurization and release apparatus comprising: a housing;a discharge aperture positioned on one end of the housing; a slidabledisk disposed within the housing to form a chamber suitable to fill,pressurize and release a liquid; a compression mechanism attached to theslidable disk; and a tensioning mechanism coupled to the slidable diskto pressurize and maintain pressure in the chamber.
 2. The apparatus ofclaim 1, wherein the tensioning mechanism comprises one or more springs.3. The apparatus of claim 1, wherein the tensioning mechanism comprisesa spring rated between about 400 1600 pounds.
 4. The apparatus of claim1, wherein the tensioning mechanism comprises a pneumatic mechanism, ahydraulic mechanism, a electric mechanism, a magnetic mechanism, amechanical mechanism or a combination thereof.
 5. The apparatus of claim1, wherein the compression mechanism comprises a rod attached to thecompression disk that slidably penetrates the housing, whereby themovement of the rod compresses the tension mechanism.
 6. The apparatusof claim 1, further comprising a threaded screw aperture in the housing,wherein the compression mechanism selectively engages and disengageswith the threaded screw aperture, whereby the compression mechanism isengaged to compresses the tension mechanism.
 7. The apparatus of claim1, wherein the compression mechanism comprises a gear box attached tothe housing and a threaded rod attached to the compression disk thatslidably penetrates the housing, wherein the gear box selectivelyengages and disengages with the threaded rod, whereby the tensionmechanism is compressed when the compression mechanism is engaged. 8.The apparatus of claim 1, wherein the compression mechanism is engagedmanually, pneumatically, hydraulically, mechanically or a combinationthereof.
 9. The apparatus of claim 1, wherein the slidable diskcomprises one or more sealing rings positioned between the slidable diskand the housing.
 10. The apparatus of claim 1, wherein the slidable diskis connected to an expandable bladder positioned between the slidabledisk and the end of the housing, to form the chamber.
 11. The apparatusof claim 1, wherein the discharge aperture comprises a valve thatincludes settings to selectively control the pressure of the liquid asit is released.
 12. The apparatus of claim 1, wherein the apparatusgenerates a generally constant pressure at the discharge aperture. 13.The apparatus of claim 1, wherein the pressure at the aperture isbetween about 5 and 100 psi.
 14. The apparatus of claim 1, wherein thedischarge aperture is adapted to attach to a fuel system.
 15. Theapparatus of claim 1, wherein the apparatus further comprises a handle,one or more legs, a attachment mechanism or a combination thereof. 16.An apparatus for pressurization and release of a liquid comprising: ahousing having a first end and a second end, wherein the first end has anotched aperture and the second end has a discharge aperture; a slidabledisk disposed within the housing to form a fluid displacement chamber; aspring disposed in the housing between the slidable disk and the firstend of the housing, such that compressing the spring draws into thefluid displacement chamber and decompressing the spring pressurizes theliquid in the fluid displacement chamber; and a rod attached to theslidable disk and engaging the notched aperture, to compress the springand decompress the spring.
 17. A method of pressurizing and releasing aliquid into a system comprising the steps of: providing a pressurizationand release apparatus comprising a housing having an aperture, aslidable disk disposed within the housing to form a chamber suitable tofill, pressurize and release a liquid, a compression mechanism attachedto the slidable disk, and a tensioning mechanism coupled to the slidabledisk; attaching the aperture of the pressurization and release apparatusto a system; and releasing the pressurized liquid into the system. 18.The method of claim 26, further comprising the steps of filling andpressurizing the a pressurization and release apparatus, wherein thestep of filling and pressurizing the a pressurization and releaseapparatus includes attaching the aperture of the pressurization andrelease apparatus to a system and activating the compression mechanism,whereby the compression mechanism compresses the tensioning mechanismand the liquid fills the apparatus and compression mechanism is releasedso that the tension from the tension mechanism pressurizes theapparatus.
 19. The method of claim 26, wherein step of releasing thepressurized liquid into the system produces a generally constantpressure at the aperture.
 20. The method of claim 26, wherein the stepof filling a pressurization and release apparatus comprises attachingthe aperture of the pressurization and release apparatus to a connectionhose.